Valent Dedicated Outdoor Air Systems
Introduction
Valent Dedicated Outdoor Air Systems are designed for 100% outdoor air applications. Valent was a pioneer in specializing in high outdoor air units, offering robust and highly configurable designs suitable for various projects. The systems are supported by Valent's extensive experience in high outdoor air applications, leading to high-performing solutions and valuable application expertise. Key design features include the use of quality components for increased unit longevity, injected foam casings for improved thermal performance, and pre-painted cabinets to reduce environmental wear and tear. Valent also provides dedicated support, aiming to reduce the need for post-sale service through quality products and offering product and selection support during the design process. End-of-line testing is conducted to reduce installation time.
Models shown include the Valent VX-352 and Valent VX-12.
Valent Units at a Glance
The following table provides a comparison of Valent VX, VXE, and VXC casing units across various specifications:
| Category | VX, VXE & VXC CASING | ||||
|---|---|---|---|---|---|
| 12 | 112 | 212 | 312 | 352 | |
| AIRFLOW | |||||
| Minimum (cfm) | 500 | 800 | 2,250 | 3,750 | 3,900 |
| Maximum (cfm) | 2,500 | 6,500 | 9,500 | 16,000 | 18,000 |
| COOLING TYPE | |||||
| Packaged, air cooled (Tons) | 3 | 5 | 15 | 25 | 30 |
| 4 | 7 | 17.5 | 30 | 40 | |
| 5 | 10 | 20 | 40 | 50 | |
| 6 | 12.5 | 25 | 50 | 60 | |
| 7 | 15 | 30 | - | 70 | |
| Chilled water (Circuits) | 1 | 1 | 1 | 2 | 2 |
| Air source heat pump | Option | Option | Option | Not available | Not available |
| No cooling | Option | Option | Option | Option | Option |
| COOLING COMPONENTS | |||||
| Inverter scroll compressor | Standard | Standard | Standard | Standard | Standard |
| Modulating hot gas reheat | Option | Option | Option | Option | Option |
| Lead EC modulating condensing fans | Standard | Standard | Standard | Standard | Standard |
| All EC modulating condensing fans | Not applicable | Option | Option | Option | Option |
| INDIRECT GAS FURNACE | |||||
| Minimum (MBh) | 75 | 100 | 300 | 600 | 600 |
| Maximum (MBh) | 200 | 300 | 500 | 1,200 | 1,200 |
| Turndown (NG) | Up to 16:1 | Up to 16:1 | Up to 16:1 | Up to 16:1 | Up to 10:1 |
| Turndown (LP) | Up to 16:1 | Up to 16:1 | Up to 16:1 | Not available | Up to 6:1 |
| ELECTRIC HEAT | |||||
| Minimum (kW) | 4 | 15 | 35 | 35 | 50 |
| Maximum (kW) | 60 | 60 | 120 | 230 | 200 |
| Air source heat pump | Not available | Option | Option | Not available | Not available |
| Hot water | Option | Option | Option | Option | Option |
| Steam coil | Not available | Option | Option | Option | Option |
| OTHER HEAT | |||||
| Hot water | Option | Option | Option | Option | Option |
| Steam coil | Not available | Option | Option | Option | Option |
Notes for the table above:
- a Based on packaged DX cooling, indirect gas heating, 100% outdoor air, 1.5 in. wg supply external and 0.5 in. wg return air static pressure. Airflows will vary based on unit configuration.
- b All EC condensing fans are not available for 575V unit configurations.
- c Actual kW minimums and maximums vary by voltage.
- d Not available in the VXC-112 or VXC-212.
- e Not available with energy recovery or powered exhaust. Not allowed with barometric relief damper in the end position.
- f Not available in Canadian markets.
Energy Recovery, Duct Connections, Controls, Construction, and Certification
The following table details features related to Energy Recovery, Duct Connections, Controls, Construction, and Certification for Valent units:
| Category | VX, VXE & VXC CASING | ||||
|---|---|---|---|---|---|
| 12 | 112 | 212 | 312 | 352 | |
| ENERGY RECOVERY | |||||
| Full width wheel Polymer | Not available | Option | Option | Option | Option |
| Full width wheel Aluminum | Not available | Option | Option | Option | Option |
| Enthalpy core Polymer | Not available | Option | Option | Not available | Not available |
| Enthalpy core Fiber | Not available | Option | Option | Not available | Not available |
| DUCT CONNECTIONS | |||||
| Bottom supply/ return | Standard | Standard | Standard | Standard | Standard |
| Side supply | Option | Option | Option | Option | Option |
| Side returnd | Not available | Option | Option | Option | Option |
| End returne | Option | Option | Option | Option | Option |
| CONTROLS | |||||
| Full controls | Standard | Standard | Standard | Standard | Standard |
| Damper | Option | Option | Option | Option | Option |
| Heat-cool only | Standard | Standard | Standard | Standard | Standard |
| Web user interface | Standard | Standard | Standard | Standard | Standard |
| Fan | Option | Option | Option | Option | Option |
| CONSTRUCTION | |||||
| Injected foam insulation | 2" double-wall R-13 | 2" double-wall R-13 | 2" double-wall R-13 | 2" double-wall R-13 | 2" double-wall R-13 |
| Exterior | Gray prepainted | Gray prepainted | Gray prepainted | Gray prepainted | Gray prepainted |
| Interior | Galvanized | Galvanized | Galvanized | Galvanized | Galvanized |
| CERTIFICATION | |||||
| AHRI 1060 | N/A | Compliant | Compliant | Compliant | Compliant |
| ASHRAE 90.1-2019 | Compliant | Compliant | Compliant | Compliant | Compliant |
| DOE 2023 | Compliant | Compliant | Compliant | Compliant | Compliant |
Additional Notes:
- Refer to Valent CAPS® selection software or the Valent Mechanical IOMs for additional detail.
- d Not available in the VXC-112 or VXC-212.
- e Not available with energy recovery or powered exhaust. Not allowed with barometric relief damper in the end position.
- f Not available in Canadian markets.
Dimensions and Weights
The following diagrams illustrate the unit configurations:
Diagram 1: Elevations with and without energy recovery wheel
Shows a side view of the unit with labels for Length (Ls), Width (W), and Height (H). It depicts variations with and without an energy recovery wheel, indicating different length dimensions (Lw, Lc) and a hood length (A).
Diagram 2: Elevations with enthalpy core heat exchangers
Shows a side view of the unit with labels for Length (Ls), Width (W), and Height (H). It depicts variations with enthalpy core heat exchangers, indicating different length dimensions (Lc) and a hood length (A), as well as a condenser width (B).
The table below provides detailed dimensions (inches) and weights (pounds) for various Valent unit models:
| CASING | Height (H) | Width (W) | Lengtha (Ls) | Length with wheel (Lw) | Length with core (Lc) | Hood length (A) | Condenser width (B) | Nominal weight (pounds) | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Bottom return | Side return | Bottom return | Side return | VX | VXE | VXC | ||||||
| VX-12 | 58.1 | 44.0 | 82.2c | N/A | N/A | N/A | N/A | 22.3 | N/A | 1,180 | N/A | N/A |
| VX-112 | 59.3 | 52.5 | 98.6a | 149.5a | 180.5 | N/A | 22.1/40.0e | 30.1 | 2,700 | 3,400 | 3,800 | |
| VX-212 | 72.5 | 68.2 | 109.0a | 163.2a | 197.3 | N/A | 27.1/38.0e | 30.1 | 4,500 | 5,100 | 5,675 | |
| VX-312 | 101.3 | 98.0 | 155.2d | 247.9 | 276.9 | N/A | N/A | 39.0b | N/A | 6,500 | 8,000 | N/A |
| VX-352 | 99.5 | 96.0 | 185.0 | 263.0 | 307.0 | 308.0 | 353.0 | 45.3/46.0e | N/A | 7,950 | 10,450 | 12,000 |
Notes for the Dimensions and Weights table:
- a Powered exhaust units with no energy recovery, whether bottom or side return, have the same length as the wheel units with bottom return. This applies to the VX-112 and VX-212.
- b If the VXE-312 has an exhaust fan, the exhaust blower bump-out will have a length of 48.4 inches.
- c If the VX-12 has an indirect gas furnace, the furnace bump-out will have a length of 13.3 inches.
- d If the VX-312 has powered exhaust but no energy recovery, the length will be 203.6 inches for bottom return and 222.7 inches for side return.
- e Longer dimension reflects VXC hood length.
Valent Dedicated Outdoor Air Systems
